Wavelength-of-he-ne-laser-experiment, a helium–neon laser or he-ne laser, is a type of gas laser whose gain medium consists of a mixture of 90% helium and 10% neon at a total pressure of about 1 torr inside of a small electrical discharge.the best-known and most widely used he-ne laser operates at a wavelength of 632.8 nm, in the red part of the visible spectrum.. Aim :- to determine the wavelength of helium-neon laser by using double slit interference pattern. link for travelling microscope :-, helium-neon laser 1 introduction the helium-neon laser, short hene-laser, is one of the most common used laser for allignement, reference laser and optics demonstrations..

2 university of california, santa barbara senior lab, physics department figure 1. the laser cavity an he-ne laser works by exciting neon atoms in the gas. the 632.8 nm optical light emitted by the laser is generated in the process when the neon atoms, 1 university of technology laser and optoelectronics engineering department laser & optoelectronic branch experiment (2) measuring the wavelength of laser with a simple ruler. With the new laser he-ne (described in the laser he-ne post), you can easily test the physical properties of the diffraction grating.we propose, in particular, to measure the pitch of the grating through the measurement of the diffraction produced on the he-ne laser beam., he-ne stands for helium-neon. the he-ne laser active medium consists of two gases which do not interact form a molecule. therefore he-ne laser is one type of atomic gas lasers..

In this video we are going to study about : practical name :- to measure the slit width from the diffraction of he-ne laser light., last uptein january 2017 ©niser fig. 6: schematics of michelson interferometer procedure: (i) observation of circular fringes using he-ne laser as the light source.

Diffraction grating practical lab: practice quiz in this experiment you determine the laser wavelength by diffraction grating. to provide all physical concept associated with this experiment i have created this quiz.